In a project to see how long ink pens will actually last (kind of like how many licks it takes to get to the center of a Tootsie Pop), Asuka Sato, a Japanese ballpoint pen artist, drew 29,249 mini smiley faces, according to Buzzfeed. So, you know, just a regular amount.

Using a Hi-Tec-C pen, Asuka discovered that one postcard (10 x 15 cm) could fit 600 smilies. The next day, the ballpoint pen artist spent 10 hours filling postcards with her tiny smileys, which gave her the idea to keep going until the ink ran out.

In total, it took Asuka six days to finish the pen, and she filled a total of 49 postcards. Asuka told Buzzfeed that the project came to her when she was bored and didn't want to leave the house during the hot summer months. "I'm an indoor person, so I started this project as something to do at home during the summer," she said. She also said that her love of drawing began in college, and she decided to ditch a corporate job to follow her true passion of being a ballpoint pen artist. "After working an office job for a year and a half, I became a ballpoint pen artist," she said. "I publish books and make merchandise in collaboration with companies." Living proof that your side hustle can become your main job, folks.

That precision, the neatly organized rows, the cute little smiling faces all make for one strangely soothing image. But, if you take a closer look, you'll see that Asuka purposefully made some of the faces look a bit indifferent and not actually smiling like this emoji: 😐. Can you spot them among the 29,249? Good luck.